Philips HX6231/67, Adult, Daily care, Blue, Ergonomic, AC/Battery, Built-in battery Philips HX6231/67. Purpose: Adult, Teeth brushing modes: Daily care, Product colour: Blue. Power source: AC/Battery, Battery type: Built-in battery, Battery technology: Nickel-Metal Hydride (NiMH). Number of handles included: 1 pc(s), Number of brush heads included: 1 pc(s)